Flux
This subnode is available to the Gas Phase nodes when the Advanced Physics Options is selected in the Show More Options dialog shown when the Show More Options button () is selected, in combination with the Include gas phase diffusion or Use Darcy’s law for momentum transport checkbox being selected in the interface top node for the corresponding gas mixture.
The node may be used for adding additional boundary mass fluxes in a model, typical stemming from nonfaradaic reactions such as water condensation-evaporation on a channel wall or diffusion of gaseous species into adjacent media. The node contains text fields for specifying the inward mass fluxes of all active gas phase species.
This node is available for exterior boundaries to Gas Phase nodes.